I live in an older home. It was built in 1927, back in the days when house were made without insulation.  Oh it’s well constructed – it’s triple brick so it’s solid, but yes, it could be warmer, especially since it’s an 87 year old house. The walls of my home are lathe and plaster and there is an air gap between my walls and the brick and mortar.  I think it’s time to spend some money to ultimately save some money!
I’ve been considering getting a company like Imperial Roofing to spray insulation into the walls and also to spray insulation in the small attic.  I haven’t checked to see how much this will cost but our government gives tax breaks for energy wise home improvements so I’d likely be able to write off a portion of the cost.  Plus, once the insulation is in, I know the heating bill will go down quite a bit because the house will not be drafty anymore!  Ok I might have a few windows that also need replacing but insulating the walls and the attic will help the most.
I’m including a fantastic infographic in this post about stopping energy leaks by using proper insulation in your home. Â It’s quite informative: